{"data":{"schemaVersion":"realm.temporal-relationships.v1","temporalSemantics":{"validTime":{"granularity":"date","bounds":"inclusive","nullStart":"start date not published in the upstream history row","nullEnd":"open-ended in the upstream history row; not independent proof of present control"},"transactionTime":{"observedAt":"2026-10-13T11:19:05.459773+00:00","meaning":"time the checksum-addressed MDRS artifacts were observed by the PostgreSQL ingestion"},"derivation":{"controllerControlsOperator":"intersection of controller and operator valid-time intervals evidenced through this mine","currentIdentity":"current controller and operator are asserted only by the MDRS Mines snapshot"}},"current":{"mine":{"type":"mine","id":"4608195","name":"No 6"},"operator":{"type":"operator","id":"P20264","name":"Radec Inc"},"controller":{"type":"controller","id":"C12748","name":"Goff Mauriene"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C02508","name":"Massey Energy Company"},"object":{"type":"mine","id":"4608195","name":"No 6"},"validFrom":"1975-09-01","validTo":"2011-05-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608195|C02508|1975-09-01|2011-05-31"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C12748","name":"Goff Mauriene"},"object":{"type":"mine","id":"4608195","name":"No 6"},"validFrom":"1989-05-30","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608195|C12748|1989-05-30|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P06978","name":"Peerless Eagle Coal Company"},"object":{"type":"mine","id":"4608195","name":"No 6"},"validFrom":"1992-07-01","validTo":"1992-12-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608195|P06978|1992-07-01|1992-12-01"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C02508","name":"Massey Energy Company"},"object":{"type":"operator","id":"P06978","name":"Peerless Eagle Coal Company"},"validFrom":"1992-07-01","validTo":"1992-12-01","current":false,"derived":true,"evidenceMineId":"4608195","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608195|P06978|1992-07-01|C02508|1975-09-01|59066"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P20264","name":"Radec Inc"},"object":{"type":"mine","id":"4608195","name":"No 6"},"validFrom":"1992-12-02","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608195|P20264|1992-12-02|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C12748","name":"Goff Mauriene"},"object":{"type":"operator","id":"P20264","name":"Radec Inc"},"validFrom":"1992-12-02","validTo":null,"current":true,"derived":true,"evidenceMineId":"4608195","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608195|P20264|1992-12-02|C12748|1989-05-30|87765"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0041211","name":"Alpha Natural Resources, Inc."},"object":{"type":"mine","id":"4608195","name":"No 6"},"validFrom":"2011-06-01","validTo":"2016-07-25","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608195|0041211|2011-06-01|2016-07-25"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0041211","name":"Alpha Natural Resources, Inc."},"object":{"type":"operator","id":"P06978","name":"Peerless Eagle Coal Company"},"validFrom":"2011-06-01","validTo":"1992-12-01","current":false,"derived":true,"evidenceMineId":"4608195","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608195|P06978|1992-07-01|0041211|2011-06-01|2066"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0127923","name":"Alpha Natural Resources Holdings, Inc"},"object":{"type":"mine","id":"4608195","name":"No 6"},"validFrom":"2016-07-26","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608195|0127923|2016-07-26|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0127923","name":"Alpha Natural Resources Holdings, Inc"},"object":{"type":"operator","id":"P06978","name":"Peerless Eagle Coal Company"},"validFrom":"2016-07-26","validTo":"1992-12-01","current":false,"derived":true,"evidenceMineId":"4608195","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608195|P06978|1992-07-01|0127923|2016-07-26|25567"}}],"coverage":{"historyRecords":4,"edgeCount":10,"intervalAnomalies":2,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4608195","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804,"relationshipSemantics":"valid time; null validTo means current or open-ended in the source"}}